Note 9 - Intangible Assets

3 Months Ended

Apr. 30, 2024

Notes to Financial Statements

Goodwill and Intangible Assets Disclosure [Text Block]

9. Intangible Assets

			April 30, 2024							January 31, 2024
	Weighted
	Average Life at		Gross Carrying		Accumulated			Net Carrying		Gross Carrying		Accumulated			Net Carrying
	April 30, 2024		Amount		Amortization			Amount		Amount		Amortization			Amount
			(in thousands)							(in thousands)
Proprietary rights		4.6		7,473		(5,168	)		2,305		7,473		(5,053	)		2,420
Customer relationships		0.1		4,884		(4,876	)		8		4,884		(4,852	)		32
Patents		1.2		2,540		(2,216	)		324		2,540		(2,190	)		350
Trade name		2.1		134		(111	)		23		134		(108	)		26
Other		0.2		416		(362	)		54		426		(366	)		60
Intangible assets			$	15,447	$	(12,733	)	$	2,714	$	15,457	$	(12,569	)	$	2,888

On January 31, 2024, the Company completed an annual review of amortizable intangible assets. Based on a review of qualitative factors, it was determined that there were no events or changes in circumstances indicating that the carrying value of amortizable intangible assets was not recoverable. During the three months ended April 30, 2024, there have been no substantive indicators of impairment.

Aggregate amortization expense was $185,000 and $224,000 for the three months ended April 30, 2024 and 2023, respectively. As of April 30, 2024, future estimated amortization expense related to amortizable intangible assets was estimated to be:

For fiscal years ending January 31,		(in thousands)
2025	$	442
2026		520
2027		381
2028		315
2029		213
Thereafter		843
Total	$	2,714